Adding to d3nj4l's answer, that Ruby also has a great community of active and passionate (yes, in the proper sense passionate of the programming language) devel

Adding to d3nj4l's answer, that Ruby also has a great community of active and passionate (yes, in the proper sense passionate of the programming language) developers. I think Elixir has better chances of taking over some of the Ruby pie from this perspective as the Elixir community is a lovely and helpful as the Ruby one. Without such community it is very hard to build momentum and most programming languages remains great options but limited to a small number of projects. I like Crystal and played with it a little bit. I tried to use it in production for a small project where I offloaded some tasks from Rails into Crystal small programs.